Which Caltrain stations only have parking for Caltrain train customers only?
http://www.caltrain.com/riderinfo/Parking.html indicates which Caltrain stations have parking (e.g. http://www.caltrain.com/stations/mountainviewstation.html -> "340 [parking] spaces; pay through ticket vending machine"), but I couldn't find any information regarding which Caltrain stations have parking for Caltrain train customers only. Looking at the Caltrain parking signs online, I see some mention "Permit Parking for Caltrain Patrons ONLY" or some don't.
E.g., from https://www.parkme.com/en-gb/lot/187135/mountain-view-station-mountain-view-ca, found by Nate Eldredge: "Permit Parking for Caltrain Patrons ONLY".
and some doesn't mention it, e.g. from https://www.parkme.com/en-gb/lot/187136/palo-alto-caltrain-station-palo-alto-ca:
Note that parkme.com doesn't have a picture of the parking sign for each Caltrain station (e.g. https://www.parkme.com/en-gb/lot/225138/sunnyvale-station-sunnyvale-ca).