Only if the warrant is on the national file and MD specifically inidcates that it will extradite. All US states and territories honor each other's requests for extradition - there are no 'safe-haven' states - it is impossible to know with certainty whether a particular state will choose to extradite you or not, there are simply too many variables. It may depend on the offense and the seriousness of it and/or how badly they want you returned - most states WILL extradite for felony offenses.
yes, they did oppose.
Antietam. He was hoping to get beyond Maryland, into Pennsylvania.
Antietam
Antietam (Sharpsburg)
Antietam (Sharpsburg)
No.
Battle of Antietam
Most states will not extradite on a misdemeanor warrant due to the expense they would incur for a relatively minor charge. Some states WILL if the distance is not that great, i.e. within 100 miles etc.
Warrants never expire. They exist until canceled by the judge. And you will probably be arrested if stopped in Louisiana.
Orlando
It stopped the Confederates invasion of the North and allowed the Union to chase them back into Maryland.
All US states check for outstanding warrants when an individual is stopped by the police, due to the ability of all law enforcement agencies in major cities (and most small ones) to connect to a nationwide data bank.