My car won't unlock w/ the key remote? - 1

I've a 2000 Honda Civic. Today, the unlock remote wouldn't unlock the car. I replaced the battery in the remote today and it still won't unlock the car. What do I do next, and how would I go about doing it? For example, how can I move my car to a mechanic or dealership if I can't get into it? Tow? Thanks

Added (1). *And how do I get inside the car w/o setting off the alarm? Or is the alarm off now, since the car may be out of sync w/ the remote?

It needs to be "Paired" with the system.
2000 Honda Civic Keyless Entry Remote Programming Instructions
https://northcoastkeyless.com/2000-honda-civic-keyless-entry-remote-programming-instructions/

Also watch the Video:

Open with the key. Leave the key on one turn position for about 5 seconds then turn again, leave for 5 seconds before opening. If the alarm still would not go off, pull the main fuse. Remove the battery and get it charged.

Use the key to open the door

Use the key to unlock the door.