I don't know if it was mentioned yet but, Chiang Mai immigration has implemented a drive-thru for 90 day reporting. Only caveat, if you are late in reporting, you still have to go inside.
This is at the airport location.
Cheers!
TLDR : Answer Summary
Chiang Mai immigration has introduced a drive-thru service for 90-day reporting at the airport location. However, if you are late in reporting, you must enter the facility.