If the govennnent issued pretrial a subpoena to a defendant's cell phone provider for historical cell-site location information (CSLI) in order to find a crime scene and, as a result of the subpoena, the government was able to discover the list of phone calls by the defendant, the CSLI for the defendant, and the locations of the cell towers, does this government action violate Carpenter v. United States, _U.S._, 138 S.Ct. 2206, 201 L.Ed.2d 507 (2018) (the government must use a warrant, in the absence of an exception such as exigent circumstances, to obtain CSLI from wireless carriers)?

Does the government's use of a pretrial subpoena to obtain a defendant's historical cell-site location information (CSLI) from a wireless carrier violate Carpenter v. United States?