A couple of friends and I on F-1 Student Visas decided to visit San Diego Border Field State Park. We looked up the park and the requirements on the website say:
The US side is supervised by Border Patrol agents and visitors should be prepared to show ID (driver's license is sufficient).
It also says on the FAQ:
Permanent residents, people with tourist, student, or work visas can go to the park without risk.
At the entrance we met Border Patrol who asked us to show ID, all of us had CA Driver's licenses which we showed to them. They asked us our nationality and we told them that (Non US). At that point they told us we needed to have all our documents (I-20, Passport, Visas) on us at all times and just the driving license would not do. Thankfully all of us had scans of all these documents on our phones. They noted our passport numbers and told us to wait while one of them went to his car to check them out. He came back a few minutes later and told us that we would need to go the border patrol station to have our documents checked. He said it was a 'deportable crime' for us not to have our documets on us at all times.
They took us to the border patrol station in their car (after putting our belongings in a bag) and made us have our finger prints taken after which they checked out document numbers and status. After this (about 40 minutes) they dropped us back at the park without any charges or anything and told us to have our documents with us at all times. We were treated courteously and the engaged in friendly chatter and told us we didn't need to worry if we were in the US legally.
We asked one of the officers if this incident would show up on our immigration record and he said that it would but we don't need to worry as it would just show up that we were detained and released after all our documents checked out.
My question: Will this detainment be shown to the immigration officer at the airport every time we enter the United States. Will we be questioned about this?