This #BlackFridayParking (or next, or whenever) consider remediatation along with documentation. If truly unused, next year you could be delighted by a cover of morning glory or whatever you sow: preferably native, don't forget acorns or fruit tree seeds in abandoned planting strips/wells often found in ununsed parking lots.
I don't have illustrative photos handy, so first two are of volunteers growing in barely used lots, third is of unused wells that may have acorns in them.
Parking lots are by definition part of the 99+% of the US that would be better with more trees https://mastodon.social/@mlinksva/110798956417471134
Parking lot remediation with native plants/trees is part of #rewilding the suburbs (anyplace with a surface parking lot is suburban, natch) https://mastodon.social/@mlinksva/110798915065358015